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Neuromuscular Impact of Acute Hypertrophic Resistance Loading with And Without Blood-Flow Restriction.
de Mendonca, Goncalo Vilhena; Margarida Correia, Joana; Gomes, Miguel; Dias Gonçalves, André; Vila-Chã, Carolina; Pezarat-Correia, Pedro.
Afiliación
  • de Mendonca GV; Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal.
  • Margarida Correia J; CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Estrada da Costa, Cruz Quebrada, Dafundo, Portugal.
  • Gomes M; Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal.
  • Dias Gonçalves A; Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal.
  • Vila-Chã C; Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal.
  • Pezarat-Correia P; Polytechnic Institute of Guarda, Av. Dr. Francisco Sá Carneiro, Portugal.
J Hum Kinet ; 82: 27-37, 2022 Apr.
Article en En | MEDLINE | ID: mdl-36196340
Exploring acute neuromuscular fatigue induced by different modalities of resistance exercise would help understand the adaptation subsequent to specific training programs. Therefore, we investigated the acute impact of high-intensity and low-intensity blood flow-restricted resistance exercise on the development of explosive torque throughout the torque-time curve. Seventeen healthy, young participants were included in a randomized, counterbalanced within-subjects design study, in which participants underwent two experimental conditions, separated by a 1-wk period. Low-intensity blood-flow restricted exercise and high-intensity resistance exercise were performed using dynamic elbow flexion at 20 and 75% of 1 repetition maximum, respectively. Maximal voluntary contraction (MVC) and the sequential rate of torque development (absolute and relative) were measured before and after exercise. Both protocols elicited a similar decrement in MVC (~ 25%) and in the peak rate of torque development after exercise (~ 45%). The absolute rate of torque development (0-50 and 50-100 ms) was also reduced (p<0.05) similarly between conditions. After normalizing torque values to MVC, this was only sustained for the rate of torque development 0-50ms (p<0.05). We found that both exercise protocols induced similar acute attenuation of the absolute rate of torque development up to the first 100 ms of MVC. We also demonstrated that the reduction in the rate of torque development between 50-100ms (in both protocols) was largely explained by an acute deficit in muscle strength post-exercise. Conversely, the impact of each protocol on the first 50ms of muscle torque did not depend on lower levels of muscle strength after exercise.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Clinical_trials Idioma: En Revista: J Hum Kinet Año: 2022 Tipo del documento: Article País de afiliación: Portugal Pais de publicación: Polonia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Clinical_trials Idioma: En Revista: J Hum Kinet Año: 2022 Tipo del documento: Article País de afiliación: Portugal Pais de publicación: Polonia